Possibly a new aircraft to the Ukraine register being delivered from South America. Last time I was at Opa Locka (blimey, 20 years ago!) there were a number of AN-12s and AN-26s parked up. About 30 years ago I visited Key West (and had a ride in a Waco with the late Fred Cabanas) and there was a Cuban AN-24 and DC-3 parked there - flown by defectors and awaiting collection by their owners or so I was told!